Developer
<?php
declare(strict_types=1);
namespace GuzzleHttp\Promise;
/**
* Interface used with classes that return a promise.
*/
interface PromisorInterface
{
/**
* Returns a promise.
*/
public function promise(): PromiseInterface;
}
Developer
In case of an error, the API will return an error response containing a specific error code 400, 403 Failed and a user-friendly message. Refer to our API documentation for a comprehensive list of error codes and their descriptions.